<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			//1.鼠标跟随效果
			//2.图片拖拽效果
			//3.显示密码
			//4.textarea还剩多少字
		</script>
	</body>
</html>
